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Monument Rocks (also Chalk Pyramids) are a series of large chalk formations in Gove County, Kansas, rich in fossils. The formations were the first landmark in Kansas chosen by the U.S. Department of the Interior as a National Natural Landmark. The chalk formations reach a height of up to 70 ft (21 m) and include formations such as buttes and ...
The region is sparsely populated with numerous communities of varying size, but no large cities. The two largest communities in the Smoky Hills region are Salina, Kansas and Hays, Kansas. Elevations in the Smoky Hills range from about 1,200 feet (370 m) in the river valley near Salina to about 2,400 feet (730 m) at the western edge of the ...
The geology of Oklahoma is characterized by Carboniferous rocks in the east, Permian rocks in the center and towards the west, and a cover of Tertiary deposits in the panhandle to the west. The panhandle of Oklahoma is also noted for its Jurassic rocks as well.
Named for the Smoky Hill River, [1] the Smoky Hill Chalk Member is the uppermost of the two structural units of the Niobrara Chalk. [2] It is underlain by the Fort Hays Limestone Member and overlain by the Pierre Shale. [2] The Smoky Hill Chalk outcrops in parts of northwest Kansas, its most famous localities for fossils, and in southeastern ...
Niobrara Chalk was weathered and opalized in the Valentine phase of the Ogallala Formation. The Niobrara Formation / ˌ n aɪ. ə ˈ b r ær ə /, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late ...
For many decades, it was a tourist trap called the Indian Burial Pit or Salina Burial Pit. [7] [5] It was declared a U.S. National Historic Landmark in 1964. [2] [3] In 1989, the state of Kansas purchased the site. In 1990, the pit was filled with sand and covered with a concrete cap to protect it, then covered with dirt and grass.
Geologic map A field of flowers in the Arbuckle foothills. Geologically the Arbuckles are an elongate anticline structure with an orientation or strike of west-northwest. The core of the structure consists of Proterozoic extrusive and intrusive rocks, the Colbert rhyolite porphyry and the Tishomingo granite (age dated at 1374 Ma), [3] which are overlain by the Arbuckle Group, the Simpson Group ...
Castle Rock is a 70 ft (21 m) tall chalk pillar landmark in Gove County, Kansas, United States. The formation and the nearby badlands are located in the Smoky Hills region of Kansas, which is approximately 11 mi (18 km) south of I-70 near Quinter, Kansas.